From 74026738d66fbd32a9e7f27879168f857fba6a3c Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.com>
Date: Thu, 2 Dec 2021 18:16:21 +0000
Subject: [PATCH] drm/panel-simple: Allow the bus format to be read
 from DT for panel-dpi

The "panel-dpi" compatible string configures panel from device tree,
but it doesn't provide any way of configuring the bus format (colour
representation), nor does it populate it.

Add a DT parameter "bus-format" that allows the MEDIA_BUS_FMT_xxx value
to be specified from device tree.

Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
---
 drivers/gpu/drm/panel/panel-simple.c | 1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/panel/panel-simple.c
+++ b/drivers/gpu/drm/panel/panel-simple.c
@@ -490,6 +490,7 @@ static int panel_dpi_probe(struct device
 
 	of_property_read_u32(np, "width-mm", &desc->size.width);
 	of_property_read_u32(np, "height-mm", &desc->size.height);
+	of_property_read_u32(np, "bus-format", &desc->bus_format);
 
 	/* Extract bus_flags from display_timing */
 	bus_flags = 0;
